Car-coupling



(No Model.)

H. A. STEVENS.

GAR COUPLING.

No. 444,890. Patented Jan. 20, 1891.

. 5,, "T1: v2 in ED STATES.

PATENT OFFICE.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 444,890, dated January20, 1891.

Application filed June 13, 1890.

To all whom it may concern.-

Be it known that I, HENRY A. STEVENS, a citizen of the United States,residing at N orristown, in the county of Montgomery, State ofPennsylvania, have invented a new and useful Improvement inGar-Couplings, which improvement is fully set forth in the follow in gspecification and accompanying drawings.

Myinvention consists of an automaticcarcoupling formed of a swinginghook or dog, which is adapted to be engaged by the coupling-link, and alock whereby the uncoupling is prevented, as will be hereinafter fullyset forth.

Figures 1 and 2 represent views of portions of a car-coupling indifferent positions embodying my invention.

Similar letters of reference indicate corresponding parts in the twofigures.

Referring to the drawings, A designates a draw-head, which, exceptingthe features of my invention applied thereto, is of usual construction.

B designates a hook or dog, which is pivoted within the draw-head andhaving its nose 0 in depending position at the front thereof, so thatthe coupling-link may be passed thereunder, and thus engage with thesame.

D designates the heel of the dog, the same depending from the rear ofthe axis of the dog as aweight and projecting below the nose, so as tobe in the path of the entering link when the cars are to be coupled. Atthe top of the dog is a shoulder E, which is adapted to be engaged by asliding bar or piece F, which latter is fitted in the wall of thedraw-head and capable of being raised and lowered, whereby the dog maybe unlocked or locked for uncoupling or coupling purposes, said doghaving also at top a shoulder G forward of the shoulder E for restingthe bar F thereupon when the dog is in uncoupled position.

On the sides of the inner walls of the drawhead adjacent to the nose 0are horizontallyextending recesses or grooves II, which serve to receivethe sides of the end portion of the link and hold the same in horizontalposition for properly entering the opposite draw-head.

The operation is as follows: When the cars Serial No. 355M382. (Nomodel.)

are coupled, the nose 0 is Within the link and the bar F engaged withthe shoulder E, whereby the dog is locked and disconnection of the linkfrom the same prevented, the cars thus being reliably coupled. In orderto uncouple the cars, the bar F is raised, whereby the dog is no longercontrolled by the same. Consequently the dog, owing to its gravitatingna ture due to the heel D, turns on its axis, the dog moving upward andrearward, thus uncovering the link and emerging from within the same.The link is now clear of the nose of the dog and the uncouplingeffected, the subsequent removal of the link from the drawhead beingreadily accomplished, as the same is carried away with the separatingcar. It will now be seen that the heel D has advanced to the mouth ofthe draw-head and the bar E, which is dropped, rested on the dog in theshoulder G thereof. Consequently when the cars are to be coupled theadvancinglink enters the draw-head and strikes the presented face of theheel, thus throwing back the latter, and at the same time lowering thenose, which, as is evident, enters the end of the link and engages withthe same. The top of the dog rides along the lower edge of the bar Funtil the side wall of the shoulderE clears said edge, when the bardrops into said shoulder and locks the dog, thus surely holding the linkand effectively coupling the cars.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a car-coupling, a swinging dog having a nose in front to engagewith a coupling-link provided with a shoulder adapted to be en gaged bya vertically-movable pin, and a depending heel rearward of said nose andthe axis of the dog, substantially as described.

2. In a car-coupling, a swinging dog having a nose to be engaged by avertically-movable pin to lock the nose closed, said dog also having arecess G for reception of the end of the pin to hold the dog open andthereby allow entrance of the link, substantially as described.

3. A car-coupling consisting of a swinging dog formed with a dependingnose in front and a depending heel rearward of said nose and the axis,said heel extending below the nose and substantially parallel therewithand presenting its front face to the advancing coupling-link, so as tothrow back said 11(6]. and thereby lower the nose into said link,substantially as described.

4. In a car-coupling, a rotatable dog having a recess G therein,together with a shoulder and nose 0, combined with a movable pin and alink, substantially as described.

HENRY A. STEVENS. Witnesses:

O. N. URNER, JONATHAN THOMAS.

